Hi

Please see the question in the comments of the following code.

NSMutableDictionary* aDictionary = (initialized with some objects)

for (id theKey in aDictionary) {
  id anObject = [[aDictionary objectForKey:theKey] retain];

 [aDictionary removeObjectForKey:theKey];
 // Question: will this removal break or corrupt the loop of enumerating the
elements?

 [anObject someMessage];
}

in java, Iterators allow the caller to remove elements from the underlying
collection during the iteration. is there similar semantics in objective-c?

-- 
Wayne Shao
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